Sakai SW354, Shop Manual

Page: 385 / 480

10-036
TROUBLESHOOTING
2-4-3. Vibratory drum cannot be switched (SW354 ROPS)
Reference Fig.: 2-4-1
Check point Check/Cause Action
1. Vibratory Drum Select
Switch
(1) When starter switch is ON, measure voltage between
vibratory drum select switch terminal 1 inlet wire RL,
terminal 4 inlet wire RL and chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON and vibratory drum select
switch is in “ ”, measure voltage between vibratory
drum select switch terminal 6 outlet wire LgR and
chassis ground.
Standard voltage : 12 V or more
(3) When starter switch is ON and vibratory drum select
switch is in “ ”, measure voltage between vibratory
drum select switch terminal 6 outlet wire LgR, terminal
3 outlet wire LgB and chassis ground.
There is no electricity in normal condition.
(4) When starter switch is ON and vibratory drum select
switch is in “ ”, measure voltage between vibratory
drum select switch terminal 3 outlet wire LgB and
chassis ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2), (3) or (4) is NG,
vibratory drum select switch is faulty.
•
Replace vibratory drum
select switch.
2. Harness Connecting
Between Terminals
Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
Repair or replace
harness.